Most of your SEO problem is a product data problem.
You can buy content, links and a monthly report full of upward arrows. None of it moves a catalogue where the titles are supplier junk, the attributes disagree with each other and half the range is not in the feed. We do the version that works on the thing underneath.
We are not consultants describing this from the outside. We run three businesses of our own and do every one of these jobs in them, every week.
A customer searching for a part is doing a database query. They just do not know it.
They type a vehicle, or a model number off a label, or a dimension. What decides whether you appear is whether your catalogue holds that fact in a form a machine can read. Not whether somebody wrote a blog post about it.
Which is why marketing and the software layer are the same job for a business like yours, and why hiring an agency to do one without touching the other produces a year of activity and no movement.
Weekly, not in campaigns.
Catalogues move. Suppliers change their files, products go out of stock, a brand gets dropped. Marketing a moving catalogue in quarterly bursts does not work, so we run it as a standing discipline instead.
The catalogue, improved every week
Titles, structure and attributes worked through in a consistent pattern that scales to tens of thousands of products, rather than fifty hand-written pages that look lovely and change nothing.
Merchant Centre kept honest
Disapprovals cleared, attributes mapped properly, the feed reflecting what you can actually ship. Most accounts we inherit have hundreds of products silently not showing and nobody had looked.
Spend that matches commercial reality
Weighted to what actually makes you money and what you can actually supply, which requires knowing your margin and your stock. We generally do.
Navigation, filtering and the technical groundwork
How a 60,000 line range stays browsable, how a filter returns the right things and how search engines are given a chance to understand any of it.
We also built our own tooling for this, because the reporting software we were paying for told us what happened and never why.
Said up front so nobody wastes a call. There are people who do these well and we are happy to name one.